192.168.100.80 Admin Login

192.168.100.80 is a Class C private IPv4 address belonging to the 192.168.100.0/24 subnet — a range closely associated with cable modems, modem-router combos, and ISP-provisioned gateway devices from manufacturers such as Arris, Motorola, Huawei, ZyXEL, and TP-Link. While the primary default gateway in this subnet is 192.168.100.1, the address 192.168.100.80 is the 80th host address in the range and is typically assigned to a connected device via DHCP, or manually configured as a static IP for a specific device such as a network printer, IP camera, smart TV, or managed switch. Because it sits well within the upper-mid range of the subnet, it is a popular choice for static assignments that need to stay clear of the lower DHCP pool. Other commonly used gateways and addresses in this subnet include 192.168.100.1 and 192.168.100.254.

How to Access 192.168.100.80

If 192.168.100.80 has been configured as the admin interface address for a device on your network — such as a managed switch, access point, IP camera, or a modem-router combo — you can reach its control panel by opening your browser and typing http://192.168.100.80 directly into the address bar. Do not type it into a search engine — paste it into the URL bar and press Enter. You will be presented with a login page where you can enter your device's username and password.

To successfully access 192.168.100.80, make sure you are connected to the same local network — either via an Ethernet cable (recommended for stability) or over Wi-Fi. Because 192.168.100.80 is a private IPv4 address, it is only reachable from within your local network and cannot be accessed from the internet, which keeps your device's admin panel protected from external threats.

If you are trying to reach a router or modem admin panel on the 192.168.100.x subnet, note that the most common default gateway for this range is 192.168.100.1, used by Arris, Motorola, Huawei, ZyXEL, and TP-Link devices. If your device's gateway is 192.168.100.80, it has been manually configured or assigned by your network administrator.

If You Can't Access 192.168.100.80

If typing http://192.168.100.80 into your browser returns an error, a blank page, or a "site can't be reached" message, work through the following checks before assuming the address is wrong:

• Verify your gateway address: Open a Command Prompt on Windows (Start > type cmd > Enter) and run ipconfig /all. Look for the Default Gateway field. If it shows something other than 192.168.100.80 — for example 192.168.100.1 or 192.168.1.1 — then your router or device uses a different admin IP. On macOS, go to System Settings > Network > your active connection > Details to find the correct gateway. You can also check our guide to find your router IP address.
• Check your physical connection: Make sure your Ethernet cable is firmly seated in both your computer's port and the device's LAN port, or confirm you are connected to the correct Wi-Fi network associated with the 192.168.100.x subnet.
• Disable VPN or proxy software: Active VPN connections reroute your traffic and can prevent access to local addresses like 192.168.100.80. Disconnect your VPN, then try again.
• Clear your browser cache or try incognito mode: Cached DNS or browser data can block the login page. Open a private/incognito window or try a different browser entirely.
• Check for IP address conflicts: If another device on your network has been manually assigned 192.168.100.80, an IP conflict will prevent the correct device from responding. Check your DHCP reservation list or temporarily disconnect other devices to isolate the conflict.
• Try the HTTP prefix explicitly: Some browsers auto-redirect to HTTPS. Make sure you type http://192.168.100.80 (not https://) since most local admin panels do not use SSL by default.

Router Brands That Use the 192.168.100.x Subnet

The 192.168.100.0/24 subnet — which includes 192.168.100.80 — is strongly associated with a specific group of cable modem and modem-router combo manufacturers. These are the brands most commonly found operating on this subnet:

• Arris: Arris SURFboard modems and modem-router combos (such as the SB8200, SBG8300, and TG1682G) frequently use 192.168.100.1 as their default gateway, placing all connected devices — including DHCP-assigned addresses like 192.168.100.80 — within the 192.168.100.x subnet. Default credentials are typically admin / password or as printed on the device label.
• Motorola: Motorola cable modems and gateways (such as the MG7700 and MB8600 series) also default to the 192.168.100.x range. Default login credentials are typically admin / motorola or admin / password — always check the sticker on the bottom of your device.
• Huawei: Huawei ONT (Optical Network Terminal) gateways and modem-router combos provisioned by ISPs frequently operate on the 192.168.100.x subnet. Default credentials vary by ISP provisioning but are commonly admin / admin or admin / password.
• ZyXEL: ZyXEL modem-router combos, particularly those provisioned by cable and DSL ISPs, use 192.168.100.1 as their default gateway. Default credentials are often admin / 1234 or admin / admin, depending on the model.
• TP-Link: Certain TP-Link modem-router combo units and ISP-provisioned TP-Link devices operate on the 192.168.100.x subnet. Default credentials are typically admin / admin.

If your network operates on the 192.168.100.x subnet and you need to access your router's admin panel, navigate to 192.168.100.1 — the primary default gateway for this range — rather than 192.168.100.80, which is a host address within the subnet.

Changing Your Router's Password on the 192.168.100.x Network

If your network operates on the 192.168.100.x subnet — common with Arris, Motorola, Huawei, and ZyXEL modem-router combos — it is critical that you change your router's default admin password as soon as possible after setup. The default credentials for these devices are publicly known and make your network vulnerable to unauthorized access.

To change your password, log in to your router's admin panel at 192.168.100.1 (or whichever gateway address your device uses). Once logged in, navigate to the Administration, Management, or Security tab — the exact label depends on your router's firmware. Look for the option to change the admin password. You will typically be prompted to enter your current password, then type and confirm your new password. Choose a strong password of at least 12 characters, mixing uppercase and lowercase letters, numbers, and symbols.

While you are in the admin panel, it is also a good time to update your Wi-Fi password (found under the Wireless or Wi-Fi settings section) and ensure your firmware is up to date. Keeping your firmware current patches known security vulnerabilities and improves device stability.

Router Username and Password List

Factory Reset Procedures for Devices on the 192.168.100.x Subnet

If you have forgotten your admin credentials or can no longer access your device's admin panel, performing a factory reset will restore all settings — including the IP address, username, and password — to their original defaults. Note that a factory reset will erase all custom settings, including your Wi-Fi name, Wi-Fi password, port forwarding rules, and any other configurations you have made. Before proceeding, note down any important settings if possible.

• Arris (SURFboard SB8200, SBG8300, TG1682G series): Locate the Reset button on the rear panel of your Arris modem or gateway. Using a straightened paperclip or pin, press and hold the button for 10–15 seconds until the front LEDs flash and the device reboots. After the reset, the modem returns to its factory state with the gateway restored to 192.168.100.1. Note that Arris cable modems may need to re-register with your ISP after a reset, which can take several minutes.
• Motorola (MB8600, MG7700 series): Locate the small recessed Reset pinhole button on the rear of the device. Use a paperclip or pin to press and hold the button for 10 seconds until the Power LED begins to flash. Release the button and allow the device to reboot. The device will restore factory defaults, including the 192.168.100.x subnet configuration. Default credentials are typically admin / motorola or admin / password.
• Huawei ONT/Gateway: Locate the Reset button (usually recessed on the rear or bottom panel). Press and hold for 10–15 seconds using a pin until the indicator lights cycle. The device will reboot and restore factory settings. Default credentials are typically admin / admin or as printed on the device label.
• ZyXEL (modem-router combos): Hold the Reset button for 10 seconds until the SYS LED turns red, then release. The device reboots with factory settings restored, including the default gateway at 192.168.100.1. Default credentials are typically admin / 1234.
• General Reset Method (All Brands): Locate the small recessed Reset button on the back or bottom of your device. With the device powered on, use a straightened paperclip or a toothpick to press and hold the Reset button for 10 to 15 seconds. Release the button when the indicator lights flash or change pattern. The device will reboot automatically and return to its factory default settings.

What is 192.168.100.80 and How Is It Used?

192.168.100.80 is a Class C private IPv4 address defined under RFC 1918, which means it is reserved exclusively for use within private local area networks (LANs) and is never routed over the public internet. It belongs to the 192.168.100.0/24 subnet, which has a usable host range of 192.168.100.1 through 192.168.100.254 — a total of 254 assignable addresses.

Within a typical home or small office network running on the 192.168.100.x subnet (common with Arris, Motorola, Huawei, and ZyXEL cable modems and gateways), the address 192.168.100.80 can serve several roles:

• DHCP-assigned host address: Your router's DHCP server may automatically assign 192.168.100.80 to a device — such as a laptop, smartphone, tablet, or smart TV — that connects to your network. The assignment is temporary (leased) and may change the next time the device reconnects.
• Static IP for a network device: Network administrators and home users frequently assign 192.168.100.80 as a fixed static IP address to devices that need a permanent, predictable address — such as a network printer, IP security camera, NAS (Network Attached Storage) drive, VoIP phone, or managed network switch. Assigning a static IP ensures the device is always reachable at the same address, regardless of DHCP lease renewals.
• Admin interface for a secondary device: In some network configurations, a secondary device such as a wireless access point, network switch, or IP camera may be configured to use 192.168.100.80 as its own management interface address, allowing you to access its settings panel by navigating to http://192.168.100.80 in your browser.

Because 192.168.100.80 sits at the 80th position in the subnet — well above the typical lower DHCP pool range but below the upper reserved addresses — it is a practical and commonly chosen address for static device assignments in networks managed by Arris, Motorola, Huawei, and ZyXEL gateways.

Related IP Addresses in the 192.168.100.x Subnet

The 192.168.100.0/24 subnet contains 254 usable host addresses. Here are the most commonly referenced addresses in this range that you may encounter on networks using Arris, Motorola, Huawei, ZyXEL, or TP-Link gateways:

• 192.168.100.1 — The primary default gateway for this subnet; the router admin panel address for Motorola, Arris, ZyXEL, Huawei, and TP-Link devices. This is the address you should use to access your router's settings.
• 192.168.100.2 — The first DHCP-assignable host address in the subnet, often assigned to the first device that connects to the network.
• 192.168.100.10 — A common static IP assignment for infrastructure devices such as managed switches or access points.
• 192.168.100.50 — A mid-range address frequently used for DHCP reservations for printers or VoIP phones.
• 192.168.100.80 — The current address; commonly used as a static IP for network devices such as IP cameras, printers, or access points, or dynamically assigned by DHCP to a connected host.
• 192.168.100.100 — A popular static IP choice for network-attached storage (NAS) devices and servers that need a memorable, fixed address.
• 192.168.100.254 — The highest usable host address in the subnet, used as the default gateway by the Arris SBX-1000P and certain Ooredoo-provisioned ISP routers.

Other commonly used default gateway addresses outside this subnet that you may want to reference include 192.168.1.1, 192.168.0.1, 10.0.0.1, and 192.168.1.254.

Frequently Asked Questions About 192.168.100.80

Is 192.168.100.80 a default router gateway address?

No. 192.168.100.80 is not typically used as a router's default gateway. The default gateway for the 192.168.100.x subnet is 192.168.100.1, which is used by brands such as Arris, Motorola, Huawei, ZyXEL, and TP-Link. The address 192.168.100.80 is instead a host address within the same subnet, typically assigned by DHCP to a connected device such as a laptop, smartphone, printer, or IP camera — or manually configured as a static IP for a specific device.

Can I use 192.168.100.80 as a static IP for my device?

Yes. If your network operates on the 192.168.100.x subnet (common with Arris, Motorola, Huawei, and ZyXEL gateways), you can assign 192.168.100.80 as a static IP to any device — such as a printer, IP camera, NAS drive, or access point. To do so, either configure the static IP directly on the device itself, or set up a DHCP reservation in your router's admin panel at 192.168.100.1 by binding the device's MAC address to 192.168.100.80. Make sure no other device on your network is already using this address to avoid an IP conflict.

Why can't I access 192.168.100.80 in my browser?

If you cannot reach 192.168.100.80 in your browser, the most likely reasons are: (1) your computer is not on the 192.168.100.x subnet — run ipconfig /all on Windows or check Network settings on macOS to confirm your gateway; (2) no device on your network is currently configured to use 192.168.100.80 as its management interface; (3) a VPN or proxy is intercepting your traffic — disconnect it and try again; or (4) there is an IP address conflict. Check your router's DHCP table at 192.168.100.1 to see which device, if any, is assigned to 192.168.100.80.

Which router brands use the 192.168.100.x subnet?

The 192.168.100.x subnet is most commonly associated with cable modem and modem-router combo manufacturers including Arris, Motorola, Huawei, ZyXEL, and TP-Link. These brands use 192.168.100.1 as the default gateway, placing all connected devices — including those assigned addresses like 192.168.100.80 — within the 192.168.100.x range. ISP-provisioned gateways from Comcast/Xfinity, Spectrum, and other cable providers often use Arris or Motorola hardware operating on this subnet.

How do I find out if 192.168.100.80 is already in use on my network?

To check whether 192.168.100.80 is already assigned to a device on your network, log in to your router's admin panel at 192.168.100.1 and navigate to the DHCP client list or connected devices section. You can also open a Command Prompt on Windows and run ping 192.168.100.80 — if you receive a reply, the address is in use. If the ping times out, the address is likely available for static assignment.

What is the subnet mask for 192.168.100.80?

The standard subnet mask for the 192.168.100.0/24 network — the subnet that 192.168.100.80 belongs to — is 255.255.255.0. This means the network portion of the address is 192.168.100, and the host portion is .80. All devices on this subnet share the same network address (192.168.100.0) and can communicate directly with each other without needing to route through an external gateway.